Folding extensible horse.



w. PENGE, c. R. WOLF & v. 0. JARVIS.

FOLDING BXTENSIBLE HORSE.

APPLICATION FILED MAYlO, 1909.

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FOLDING EXTENSIBLB HORSE.

APPLICATION FILED MAY 10,1909.

Patented June 28, 1910.

2 SHEETS-SHEET 2.

UNITED STATES FAENT OFFICE.

WARREN .PENOE, CHARLES R. WOLF, AND VIRGIL 0: JARVIS, OF LOS ANGELES,CALIFORNIA.

FOLDING EXTENSIBLE HORSE.

To all whom it may concern:

Be it known that we, WARREN Pinion, CHARLES R. TOLF, and VIRGIL 0.JARVIS, citizens of the United States, residing at Los Angeles, in thecounty of Los Angeles and State of California, have invented a new anduseful Folding Extension-Horse, of which the following is aspecification.

This invention relates to a horse for use by painters, plasterers, etc.,as a supporting member for the trestle on which the workmen stand, andthe main object of the invention is to provide a horse for this purposewhich will be extensible to various heights, either with or without theload, and which can be folded into compact space when not in use, orwhen being transported.

Other objects of the invention will appear hereinafter.

The accompanying drawings illustrate the invention, and referringthereto :Figure 1 is a perspective of the horse. Fig. 2 is an endelevation thereof. Fig. 3 is a perspective of the top or cross member ofthe horse. Fig. 4; is a perspective of one of the legs of the extensionmember. Fig. 5 is a perspective of a pair of the folding legs. Fig. 6 isa perspective of the operating means for the extension member. Fig. 7 isa perspective of an extension leg. Fig. 8 is a perspective of one of theclamping devices for the extension legs.

The horse comprises two pairs of folding legs and an extension membersupported thereby. Each pair of folding legs comprises two leg members 1which are connected near their upper ends by a plate 2 pivotallyconnected at 3 to each of the leg members, so that said leg members canfold into parallel position as shown in Fig. 5 or can be extended intoopen position shown in Figs. 1 and 2. When in such open position thelegs may be held extended at a definite angle by a cross bar 1 pivotedat 5 to one of the leg members and having a notch 6 near its other endengaging over a bolt 7 on the other leg member. When thus held inextended position the leg members 1 are separated at their upper ends,forming a guide Specification of Letters Patent. Patented June 28, 1910.

Application filed May 10, 1909.

Serial No. 495,191.

or way between them to receive and guide the extension member.

The extension member comprises a top or cross bar 9 and two extensionposts 10 depending therefrom. Each post 10 is fastened to the top bar 9by a clamp consisting of a U-shaped member 12 embracing the top bar ateach end thereof and pivoted to the top bar so as to be turned up awayfrom the post 10 or to be turned down over the same to firmly hold thesame in position as shown in Fig. 1. The upper portion of the post 10may be armored, with a loop 13, which forms a socket to receive the endof the top bar 9. The end of the top bar 9 is first inserted in thesocket formed by the metal loop 13 and then the pivoted clamp 12 isturned down over the top end of the post 10 and loop 13, where it isgripped by the clamp 12, it being understood that the members 1, 1, 9and 10 may be of wood. A brace 15 is provided at each corner of theextension member, said brace consisting of a bar pivoted at 16 to ahanger 17 fastened to the top bar 9, the lower end of said bar 15 havinga projecting plate or tenon 18 extending into and fitting within amortise or slot 19 in the post 10, said tenon having a notch 20 fittingover a pin or screw 21 in the post 10 to hold the brace firmly inposition. The folding leg members 1 are further provided with insideplates 24, preferably of metal, which engage on the inside of the posts10 to guide the same. In order to hold the supports constituted by thefolding legs at the proper distance, diagonal braces 27 are provided,each brace having a slot 28 near its lower end engaging over a belt orpin 29 on the leg member and provided with a key hole slot 30 near itsupper end which engages over a pin or bolt 31 near the upper end of theopposite leg, the braces 27 being further provided with a key-hole slot32 to fit over the bolt 31 of its corresponding leg when the parts arefolded, as shown in Fig. 5. The long slots 28 permit the brace 27 to bemoved down on the leg so that the upper slot 32 can be engaged with thepin 31 on the top of the leg to which the brace is to be folded against.Additional guiding means for the extension member are providedconsisting of a rectangular socket 33 receiving the post 10 on eachside, saidsocket being supported by and pivoted to a cross plate 36which rests by hooks 37 at its ends 'on screws or pins 38 on therespective leg mem bers 1 when the folding legs are in extendedposition. Said cross plate 36 is connected by a pivot 38 to plates 39 onthe upper ends of two toggle arms 40 which extend obliquely downwardfrom this pivotal point and are connected by pivots 41 to the respectivelegs. Stop plates 42 are provided for legs 10. The cross plates 36 alsosupport the operating means for the extension member, said operatingmeans consisting of a shaft 45 resting in round seats or journalportions 46 in said plates and provided with a drum portion 48 near eachend, a rope 49 being attached to the said shaft and winding around eachdrum portion and extending down under a pulley 50 at the bottom of thepost 10 and up on the other side of the leg member, its farther endbeing provided with a hook 52 which is hooked in a notch 44 in the crossplate 36. Said shaft 45 is further provided with a ratchet 53 engaged bya pawl 54 to hold the extension member in an elevated position. Asquared portion 55 on the shaft 45 serves to receive a handle forraising the rotating shaft when required to raise the extension member.

Extension legs may be provided for the respective leg members 2, eachextension post consisting of a bar 56 having a longitudinal slot 57 anda series of transverse notches 58 adapted to receive a clamp plate 59fastened into position by a bolt 60 provided with suitable fasteningmeans such as a butterfly nut 61.

\Vhen the horse is to be shipped or stored the parts may be dismemberedand folded as shown in Figs. 3, 4 and 5, and the horse may be set up foruse at any time by opening out the leg members 1, fastening the sameinto position by the cross bars 4, 27, depressing the braces 15 of thetop member '9, slipping the posts 10 into position and clamping the sameby the clamp 12 and locking device 20, 21, placing the shaft 45 intoposition and passing the ropes 49 under the pulleys 50 and hooking theends thereof in notches 44. The extension member may then be elevated toany required position by operation of the shaft 45. The horse is capableof use on a slope by suitable adjustment of the extension legs 56 at theopposite sides of the horse, the series of notches 58 and the long slot57 thereof providing for such adjustment.

The extension posts 10 will be furnished of various lengths so thatposts of any desired length may be employed according to the work inwhich the horse is used. This construction enables the top bars 9 to beadjusted high enough to enable plasterers, painters or carpenters towork 011 the ceiling of any height.

The horse may be adjusted to the desired height while the weight is onit without removing any of it, which is a great convenience particularlyfor brick layers.

That we claim is 1. A folding extension horse comprising foldingsupports, each support formed with two legs, a connecti'ngmember at t 1eupper end thereof, said legs being pivoted to said connecting member andhaving their upper ends separated to form a guide, means ex tendingbetween the said legs and provided with a guide, an extension membercomprising a top bar, vertical legs depending therefrom and sliding insaidguides, a shaft rotatably mounted on said means extending betweenthe legs, a rope "connected to and winding on said shaft and engagingsaid depending legs to raise or lower the extension member, said shaftbeing provided with operating means and with a ratchet, and a pawl forsaid ratchet.

2. A folding extension horse comprising a pair of supports, each supportconsisting of a top member and two legs pivoted thereto, a cross barpivoted to one of said legs and detachably connected to the other ofsaid legs, bars pivoted to the respective legs near their lower portionsand pivoted together at their upper ends forming a toggle, a crossplateconnected to the pivot of said toggle and having a hook at each side ofsaid pivot, each of said legs having a bolt to engage said hook, a guideconnected to the pivot of said toggle, a guide formed at the upper endof said legs, an extension member comprising a cross bar and two legsdepending therefrom, each leg mounted to slide in the guides of thecorresponding support, and operating means supported on said crossplates and connected to elevate the extension member.

'3. A folding extension horse comprising folding supports, each supportformed with two legs, a connecting member at the upper end thereof, saidlegs being pivoted to said connecting member and having their upper endsseparated to form a guide, means extending between the said legs andprovided with a guide, an extension member comprising a top bar,vertical legs depending therefrom and sliding in said guides, a shaftrotatably mounted on said means extending between the legs, a ropeconnected to and winding on said shaft and engaging said depending poststo raise or lower the extension member, said shaft being provided withIn testimony whereof, We have hereunto operating means and witharatchet, a paWl set our hands at Los Angeles, California, for saidratchet, and extension posts for this 1st day of May 1909.

each of the aforesaid le members said ex- 5 tension posts provided withlongitudinal slots, and a series of transverse recesses, a VIRGIL OJARVIS bolt traversing said slot and secured to the leg member, and aplate engaged by said In presence of bolt and seated in a transverseslot of the G. T. HACKLEY, 10 extension leg. FRANK L. A. GRAHAM.

